1304323013 has 32 divisors (see below), whose sum is σ = 1552320000. Its totient is φ = 1095316992.

The previous prime is 1304323003. The next prime is 1304323021. The reversal of 1304323013 is 3103234031.

It is not a de Polignac number, because 1304323013 - 2¹⁰ = 1304321989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304323003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6554288 + ... + 6554486.

It is an arithmetic number, because the mean of its divisors is an integer number (48510000).

Almost surely, 2^1304323013 is an apocalyptic number.

It is an amenable number.

1304323013 is a deficient number, since it is larger than the sum of its proper divisors (247996987).

1304323013 is an equidigital number, since it uses as much as digits as its factorization.

1304323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1304323013 is about 36115.4124024633. The cubic root of 1304323013 is about 1092.6013152169.

Adding to 1304323013 its reverse (3103234031), we get a palindrome (4407557044).

The spelling of 1304323013 in words is "one billion, three hundred four million, three hundred twenty-three thousand, thirteen".